Celtic House Venture Partners

Established in 1994, Celtic House is a Canadian investment firm specializing in technology and innovation. With offices in Toronto and Ottawa, the firm manages over $425 million across three funds. Celtic House collaborates with management teams to develop technology companies from inception to exit, having facilitated 25 IPOs and successful acquisitions.

David Adderley

Managing Partner

Brian Antonen

Partner

Alo Brake

General Partner

Roger Maggs

Founder and Partner

Tomas Valis Ph.D

Managing Partner

Tom Valis

Managing Partner

Past deals in Ontario

Quadshift

Venture Round in 2025
Quadshift acquires and builds B2B software companies in niche vertical markets across North America, leveraging in-house finance, sales, marketing, creative, engineering, and management capabilities to create new opportunities and customer value, and aims to transform commerce across multiple industries through vertical market SaaS solutions.

Snappy

Series A in 2023
Snappy is a developer of restaurant management technology that focuses on enhancing customer engagement and business productivity. The company offers a platform that includes custom-branded mobile apps and websites, as well as features such as table management, customer relationship management, customer analytics, online ordering, and payment processing. By integrating these functions, Snappy enables restaurants to improve operational efficiency and expand their market reach.

Snappy

Pre Seed Round in 2021
Snappy is a developer of restaurant management technology that focuses on enhancing customer engagement and business productivity. The company offers a platform that includes custom-branded mobile apps and websites, as well as features such as table management, customer relationship management, customer analytics, online ordering, and payment processing. By integrating these functions, Snappy enables restaurants to improve operational efficiency and expand their market reach.

Snappy

Venture Round in 2021
Snappy is a developer of restaurant management technology that focuses on enhancing customer engagement and business productivity. The company offers a platform that includes custom-branded mobile apps and websites, as well as features such as table management, customer relationship management, customer analytics, online ordering, and payment processing. By integrating these functions, Snappy enables restaurants to improve operational efficiency and expand their market reach.

Doorr

Seed Round in 2020
Doorr Inc. is a Toronto-based company founded in 2018 that specializes in developing application software for the mortgage industry. The company offers a digital mortgage platform designed to streamline the mortgage process for brokers, agents, and financial institutions. This platform facilitates collaboration between brokers and their clients, providing tools for managing pre-approvals, refinances, and purchases in a centralized location. By digitizing the entire mortgage experience—from document management to deal funding—Doorr enhances efficiency and improves visibility throughout the application and approval process. Its solutions also include data visualization and customizable websites, allowing agents to better serve their clients and navigate the complexities of the mortgage market.

Graphite Software

Series B in 2016
Graphite Software Corp. is a technology company that specializes in secure Android virtualization solutions, allowing multiple virtual environments, or "Spaces," to coexist on a single device. Founded in 2013 and headquartered in Ottawa, Canada, with additional offices in Sunnyvale, California, and Beijing, China, Graphite's flagship offering, Secure Spaces, enables users to create distinct areas for personal use, children, work, and secure banking. Each Space can be customized with different applications, wallpapers, launchers, and security settings, catering to a variety of needs in sectors such as secure banking, enterprise mobility, and education. The company's innovative approach addresses the challenges in the bring-your-own-device (BYOD) market, combining user-friendliness with high-level security, thereby redefining mobile device security for both enterprises and consumers.

Peraso Technologies

Series C in 2016
Peraso Technologies Inc. is a fabless semiconductor company based in Toronto, Canada, founded in 2008. The company specializes in developing multi-gigabit millimeter wave single-chip transceivers and array antenna solutions, primarily targeting the mobile consumer electronics market. Its product offerings include chipsets designed to meet the IEEE 802.11ad specification, enabling applications such as mobile rapid sync-n-go, desktop interconnects, wireless networking, in-room HD video streaming, cellular backhaul, and vehicle-to-vehicle communication. Peraso Technologies also provides custom solutions tailored to specific customer needs, enhancing its versatility in meeting diverse market demands.

KodaCloud

Series A in 2015
KodaCloud Inc. is a provider of cloud-based Wi-Fi services that caters to enterprise customers in Canada. Founded in 2014 and headquartered in Campbell, California, with an additional office in Ontario, KodaCloud leverages artificial intelligence and Big Data to monitor and troubleshoot network performance. The company offers a subscription model that allows businesses to access a network of Wi-Fi access points shipped directly to their locations, eliminating the need for upfront equipment purchases or inventory management. KodaCloud’s services can be easily activated through a web portal or mobile app, enabling rapid deployment of Wi-Fi networks. By capturing real-time key performance indicators and analyzing trends, KodaCloud optimizes network performance autonomously, providing a cost-effective solution for businesses while enabling managed service providers to achieve significant profit margins through its recurring revenue model.

Peraso Technologies

Series B in 2014
Peraso Technologies Inc. is a fabless semiconductor company based in Toronto, Canada, founded in 2008. The company specializes in developing multi-gigabit millimeter wave single-chip transceivers and array antenna solutions, primarily targeting the mobile consumer electronics market. Its product offerings include chipsets designed to meet the IEEE 802.11ad specification, enabling applications such as mobile rapid sync-n-go, desktop interconnects, wireless networking, in-room HD video streaming, cellular backhaul, and vehicle-to-vehicle communication. Peraso Technologies also provides custom solutions tailored to specific customer needs, enhancing its versatility in meeting diverse market demands.

Graphite Software

Series A in 2013
Graphite Software Corp. is a technology company that specializes in secure Android virtualization solutions, allowing multiple virtual environments, or "Spaces," to coexist on a single device. Founded in 2013 and headquartered in Ottawa, Canada, with additional offices in Sunnyvale, California, and Beijing, China, Graphite's flagship offering, Secure Spaces, enables users to create distinct areas for personal use, children, work, and secure banking. Each Space can be customized with different applications, wallpapers, launchers, and security settings, catering to a variety of needs in sectors such as secure banking, enterprise mobility, and education. The company's innovative approach addresses the challenges in the bring-your-own-device (BYOD) market, combining user-friendliness with high-level security, thereby redefining mobile device security for both enterprises and consumers.

Peraso Technologies

Series A in 2010
Peraso Technologies Inc. is a fabless semiconductor company based in Toronto, Canada, founded in 2008. The company specializes in developing multi-gigabit millimeter wave single-chip transceivers and array antenna solutions, primarily targeting the mobile consumer electronics market. Its product offerings include chipsets designed to meet the IEEE 802.11ad specification, enabling applications such as mobile rapid sync-n-go, desktop interconnects, wireless networking, in-room HD video streaming, cellular backhaul, and vehicle-to-vehicle communication. Peraso Technologies also provides custom solutions tailored to specific customer needs, enhancing its versatility in meeting diverse market demands.

PixStream

Venture Round in 2010
PixStream is a technology company based in Waterloo, Ontario, specializing in video networking solutions. Founded in 1996 by Marc Morin and Brad Siim, the company develops systems that adapt television signals for various network types. Its offerings include complete video head-ends that enable service providers to deliver converged services over existing infrastructures. By optimizing bandwidth, PixStream's technology allows for the efficient transport of high-quality video and audio over broadband networks, facilitating the introduction of advanced video services and applications for customers.

Avvasi

Series B in 2010
Avvasi Incorporated is a company based in Waterloo, Canada, specializing in Quality of Experience (QoE) driven streaming video analytics and traffic management solutions. Founded in 2008, Avvasi designs and manufactures carrier-grade mobile video infrastructure systems and software. Its flagship product, Q-VUE, allows service providers to monitor and analyze mobile video traffic, focusing on demographic data and QoE metrics. Additionally, the Q-SRV solution facilitates traffic management by prioritizing QoE in decision-making processes related to video traffic monetization in mobile networks. Avvasi serves a range of customers both in Canada and internationally, aiming to enhance the balance between infrastructure costs and subscriber experience. As of August 2016, Avvasi operates as a subsidiary of NetScout Systems, Inc.

Peraso Technologies

Series A in 2009
Peraso Technologies Inc. is a fabless semiconductor company based in Toronto, Canada, founded in 2008. The company specializes in developing multi-gigabit millimeter wave single-chip transceivers and array antenna solutions, primarily targeting the mobile consumer electronics market. Its product offerings include chipsets designed to meet the IEEE 802.11ad specification, enabling applications such as mobile rapid sync-n-go, desktop interconnects, wireless networking, in-room HD video streaming, cellular backhaul, and vehicle-to-vehicle communication. Peraso Technologies also provides custom solutions tailored to specific customer needs, enhancing its versatility in meeting diverse market demands.

dna13

Series A in 2007
dna13 Inc. is a Canadian company that specializes in on-demand software solutions for brand and reputation management. Founded in 2001 and based in Ottawa, the company offers a suite of products, including dnaEnterprise, which is designed for public relations and corporate communications. This software allows organizations to manage, monitor, and measure their brand and reputation in real-time by consolidating media content, critical brand data, and stakeholder information into a centralized data warehouse. Additionally, dnaMonitor provides media monitoring capabilities for real-time insights into brand performance, competitor activities, and industry issues. dna13 also offers consulting, training, and implementation services to support its software users across various sectors, including corporate communications, public relations, investor relations, government relations, human resources, and legal departments. The company has established strategic partnerships with several industry leaders to enhance its service offerings and capabilities.

Sirific Wireless

Series C in 2007
Sirific Wireless is a semiconductor company specializing in the design and development of CMOS RF transceivers for the wireless communications market. Founded in 2000, the company is headquartered in Richardson, Texas, with additional offices in Waterloo, Canada, and Seoul, Korea. Sirific Wireless offers a range of products, including monolithic multi-mode wireless designs, digital direct conversion products, Harmony direct upconversion transmitters, and its NEXUS platform. The NEXUS platform integrates various technologies such as HSDPA, WCDMA, EDGE, GPRS, and GSM, featuring on-chip receive diversity to create transceivers suitable for multi-mode and multi-band wireless applications.

Third Brigade

Series B in 2005
Third Brigade is a privately-held security and compliance software company based in Ottawa, Canada. It specializes in providing security solutions for servers and virtual machines, focusing on application protection to safeguard datacenters. The company offers critical security and compliance software, along with vulnerability response services, designed to protect physical, virtual, and cloud servers, as well as corporate endpoints, from sophisticated malware and malicious activities. Third Brigade's capabilities contribute to enhancing the overall security posture of its clients in a rapidly evolving digital landscape.

Third Brigade

Series A in 2005
Third Brigade is a privately-held security and compliance software company based in Ottawa, Canada. It specializes in providing security solutions for servers and virtual machines, focusing on application protection to safeguard datacenters. The company offers critical security and compliance software, along with vulnerability response services, designed to protect physical, virtual, and cloud servers, as well as corporate endpoints, from sophisticated malware and malicious activities. Third Brigade's capabilities contribute to enhancing the overall security posture of its clients in a rapidly evolving digital landscape.

Tropic Networks

Series D in 2004
Tropic Networks, Inc. designs, develops, and markets regional and metro-area optical networking equipment for telephony, data, and cable applications. The company offers Wavelength Tracker, an optical transport solution that leverages SONET/SDH familiarity to deliver optical layer intelligence; and various services for Tropic Networks platform and its related products, including network design, planning and installation, operation and maintenance consulting, and evaluation and modeling of network architecture, as well as training and planned upgrades. It also provides Networks TRX-24000, a metro optical transport platform that delivers dense wavelength division multiplexing and optical add-drop multiplexing for a host of services in a package. The company offers metro-optimized network solution for carriers to plan, manage, and scale the MAN; and to address the need for bandwidth expansion, optical transport, wavelength identification, and wavelength management in regional and metropolitan-area optical networks. Its metro optical networking solution streamlines the underlying optical layer architecture of DWDM/ODAM networks. Tropic Networks, Inc. was founded in 2000 and is headquartered in Ottawa, Canada.

Sirific Wireless

Series B in 2004
Sirific Wireless is a semiconductor company specializing in the design and development of CMOS RF transceivers for the wireless communications market. Founded in 2000, the company is headquartered in Richardson, Texas, with additional offices in Waterloo, Canada, and Seoul, Korea. Sirific Wireless offers a range of products, including monolithic multi-mode wireless designs, digital direct conversion products, Harmony direct upconversion transmitters, and its NEXUS platform. The NEXUS platform integrates various technologies such as HSDPA, WCDMA, EDGE, GPRS, and GSM, featuring on-chip receive diversity to create transceivers suitable for multi-mode and multi-band wireless applications.

Camilion Solutions

Series B in 2003
Camilion Solutions is a software company based in Markham, Ontario, that specializes in providing product development and management solutions primarily for the insurance and financial services sectors. Founded in 2000, the company offers a range of tools designed to enhance enterprise product agility. Its flagship products include ProductAuthority, which automates the management of ISO electronic content and facilitates analysis and updates of ISO deviations, and PolicyAuthority, which supports the entire policy administration lifecycle, encompassing application data capture, rating, pricing, and policy transactions. Camilion Solutions is committed to helping organizations streamline their product lifecycle management and improve operational efficiency through innovative software solutions.

Tropic Networks

Series C in 2003
Tropic Networks, Inc. designs, develops, and markets regional and metro-area optical networking equipment for telephony, data, and cable applications. The company offers Wavelength Tracker, an optical transport solution that leverages SONET/SDH familiarity to deliver optical layer intelligence; and various services for Tropic Networks platform and its related products, including network design, planning and installation, operation and maintenance consulting, and evaluation and modeling of network architecture, as well as training and planned upgrades. It also provides Networks TRX-24000, a metro optical transport platform that delivers dense wavelength division multiplexing and optical add-drop multiplexing for a host of services in a package. The company offers metro-optimized network solution for carriers to plan, manage, and scale the MAN; and to address the need for bandwidth expansion, optical transport, wavelength identification, and wavelength management in regional and metropolitan-area optical networks. Its metro optical networking solution streamlines the underlying optical layer architecture of DWDM/ODAM networks. Tropic Networks, Inc. was founded in 2000 and is headquartered in Ottawa, Canada.

Sirific Wireless

Venture Round in 2002
Sirific Wireless is a semiconductor company specializing in the design and development of CMOS RF transceivers for the wireless communications market. Founded in 2000, the company is headquartered in Richardson, Texas, with additional offices in Waterloo, Canada, and Seoul, Korea. Sirific Wireless offers a range of products, including monolithic multi-mode wireless designs, digital direct conversion products, Harmony direct upconversion transmitters, and its NEXUS platform. The NEXUS platform integrates various technologies such as HSDPA, WCDMA, EDGE, GPRS, and GSM, featuring on-chip receive diversity to create transceivers suitable for multi-mode and multi-band wireless applications.

Tropic Networks

Series B in 2001
Tropic Networks, Inc. designs, develops, and markets regional and metro-area optical networking equipment for telephony, data, and cable applications. The company offers Wavelength Tracker, an optical transport solution that leverages SONET/SDH familiarity to deliver optical layer intelligence; and various services for Tropic Networks platform and its related products, including network design, planning and installation, operation and maintenance consulting, and evaluation and modeling of network architecture, as well as training and planned upgrades. It also provides Networks TRX-24000, a metro optical transport platform that delivers dense wavelength division multiplexing and optical add-drop multiplexing for a host of services in a package. The company offers metro-optimized network solution for carriers to plan, manage, and scale the MAN; and to address the need for bandwidth expansion, optical transport, wavelength identification, and wavelength management in regional and metropolitan-area optical networks. Its metro optical networking solution streamlines the underlying optical layer architecture of DWDM/ODAM networks. Tropic Networks, Inc. was founded in 2000 and is headquartered in Ottawa, Canada.

Sirific Wireless

Series A in 2001
Sirific Wireless is a semiconductor company specializing in the design and development of CMOS RF transceivers for the wireless communications market. Founded in 2000, the company is headquartered in Richardson, Texas, with additional offices in Waterloo, Canada, and Seoul, Korea. Sirific Wireless offers a range of products, including monolithic multi-mode wireless designs, digital direct conversion products, Harmony direct upconversion transmitters, and its NEXUS platform. The NEXUS platform integrates various technologies such as HSDPA, WCDMA, EDGE, GPRS, and GSM, featuring on-chip receive diversity to create transceivers suitable for multi-mode and multi-band wireless applications.

Tropic Networks

Series A in 2000
Tropic Networks, Inc. designs, develops, and markets regional and metro-area optical networking equipment for telephony, data, and cable applications. The company offers Wavelength Tracker, an optical transport solution that leverages SONET/SDH familiarity to deliver optical layer intelligence; and various services for Tropic Networks platform and its related products, including network design, planning and installation, operation and maintenance consulting, and evaluation and modeling of network architecture, as well as training and planned upgrades. It also provides Networks TRX-24000, a metro optical transport platform that delivers dense wavelength division multiplexing and optical add-drop multiplexing for a host of services in a package. The company offers metro-optimized network solution for carriers to plan, manage, and scale the MAN; and to address the need for bandwidth expansion, optical transport, wavelength identification, and wavelength management in regional and metropolitan-area optical networks. Its metro optical networking solution streamlines the underlying optical layer architecture of DWDM/ODAM networks. Tropic Networks, Inc. was founded in 2000 and is headquartered in Ottawa, Canada.

Protus IP Solutions

Venture Round in 1999
Protus IP Solutions, Inc. is a provider of software-as-a-service communication tools designed for small to medium businesses and enterprise organizations. Founded in 1997 and based in Ottawa, Canada, the company offers a range of services including Internet fax, virtual PBX, email marketing, as well as fax and voice broadcast services. Its products are marketed under several brand names, including MyFax, my1voice, Campaigner, and CampaignerPro. Protus IP Solutions caters to various sectors such as finance, insurance, real estate, healthcare, transportation, and government, focusing on making business communication both affordable and effective. As of December 2010, the company operates as a subsidiary of j2 Global Communications, Inc.
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